climbing herbs to large lianas, glabrous or hairy. Leaves simple or compound,
alternate, entire or lobed, petiole often glandular. Flowers in racemose or
cymose inflorescence, bisexual, showy. Sepals 5, free. Petals 5, membranous,
sometimes absent. Corona
simple or mostly composed of an outer corona consisting of threads or filaments
and flat or plicate inner coronas. Stamens 5(-8). Ovary 1-celled with many
ovules, styles 3, free or connate at the base, stigmas capitate or reniform.
Fruits baccate. Seeds compressed, reticulate.